Sorry, it didn't copy over. Try this:
Name Nat From[83] To[83]
Davy McDougall Scotland 1910 1911
Fred Stewart England 1911 1933
Bartley Wilson England 1933 1934
Ben Watts-Jones Wales 1934 1937
Bill Jennings Wales 1937 1939
Cyril Spiers England 1939 1946
Billy McCandless Northern Ireland 1946 1948
Cyril Spiers England 1948 1954
Trevor Morris Wales 1954 1958
Bill Jones Wales 1958 1962
George Swindin England 1962 1964
Jimmy Scoular Scotland 1964 1973
Lew Clayton (caretaker) England 1973 1973
Frank O'Farrell Republic of Ireland 1973 1974
Jimmy Andrews Scotland 1974 1978
Richie Morgan Wales 1978 1981
Graham Williams Wales 1981 1982
Len Ashurst England 1982 1984
Jimmy Goodfellow & Jimmy Mullen (caretakers) England England 1984 1984
Jimmy Goodfellow England 1984 1984
Alan Durban Wales 1984 1986
Jimmy Mullen (caretaker) England 1986 1986
Frank Burrows Scotland 1986 1989
Name Nat From[83] To[83]
Len Ashurst England 1989 1991
Eddie May England 1991 1994
Terry Yorath Wales 1994 1995
Eddie May England 1995 1995
Kenny Hibbitt England 1995 1996
Phil Neal England 1996 1996
Kenny Hibbitt (caretaker) England 1996 1996
Russell Osman England 1996 1998
Kenny Hibbitt (caretaker) England 1998 1998
Frank Burrows Scotland 1998 2000
Billy Ayre England 2000 2000
Bobby Gould England 2000 2000
Alan Cork England 2000 2002
Lennie Lawrence England 2002 2005
Dave Jones England 2005 2011
Malky Mackay Scotland 2011 2013
David Kerslake (caretaker) England 2013 2014
Ole Gunnar Solskjær Norway 2014 2014
Scott Young & Daniel Gabbidon (caretakers) Wales Wales 2014 2014
Russell Slade England 2014 2016
Paul Trollope Wales 2016 2016
Neil Warnock England 2016 Present